From the age of 25 the skin gradually loses tone and elasticity. The first signs are facial wrinkles, such as crow’s feet around the eyes and smile lines around the mouth. By the age of 40, the metabolic processes slow down in the skin. The blood circulation deteriorates; sagging, dryness and roughness of the skin appear. The subcutaneous fat disappears and the activity of the sebaceous glands decreases. Thus, the skin is dry and it´s surface becomes thinner. Creases are formed in the cheek, neck and décolleté. The wrinkles around the eyes and mouth, which were initially only be seen as fine lines, are more pronounced with time. Additionally, stress and environmental factors such as UV light and smoking accelerate skin aging.